PASTRAMI: Privacy-preserving, Auditable, Scalable Trustworthy Auctions for Multiple Items

04/14/2020
by   Michał Król, et al.
0

Decentralised cloud computing platforms enable individuals to offer and rent resources in a peer-to-peer fashion. They must assign resources from multiple sellers to multiple buyers and derive prices that match the interests and capacities of both parties. The assignment process must be decentralised, fair and transparent, but also protect the privacy of buyers. We present PASTRAMI, a decentralised platform enabling trustworthy assignments of items and prices between a large number of sellers and bidders, through the support of multi-item auctions. PASTRAMI uses threshold blind signatures and commitment schemes to provide strong privacy guarantees while making bidders accountable. It leverages the Ethereum blockchain for auditability, combining efficient off-chain computations with novel, on-chain proofs of misbehaviour. Our evaluation of PASTRAMI using Filecoin workloads show its ability to efficiently produce trustworthy assignments between thousands of buyers and sellers.

READ FULL TEXT

page 1

page 5

research
07/08/2020

Open-Pub: A Transparent yet Privacy-Preserving Academic Publication System based on Blockchain

Academic publications of latest research results are crucial to advance ...
research
07/10/2023

A Privacy-Preserving and Accountable Billing Protocol for Peer-to-Peer Energy Trading Markets

This paper proposes a privacy-preserving and accountable billing (PA-Bil...
research
01/05/2022

Privacy-Friendly Peer-to-Peer Energy Trading: A Game Theoretical Approach

In this paper, we propose a decentralized, privacy-friendly energy tradi...
research
02/09/2023

Designing Fairness in Autonomous Peer-to-peer Energy Trading

Several autonomous energy management and peer-to-peer trading mechanisms...
research
06/26/2023

ethp2psim: Evaluating and deploying privacy-enhanced peer-to-peer routing protocols for the Ethereum network

Network-level privacy is the Achilles heel of financial privacy in crypt...
research
08/26/2020

FileBounty: Fair Data Exchange

Digital contents are typically sold online through centralized and custo...
research
05/03/2020

SEPAR: A Privacy-Preserving Blockchain-based System for Regulating Multi-Platform Crowdworking Environments

Despite recent intensive research, existing crowdworking systems do not ...

Please sign up or login with your details

Forgot password? Click here to reset